Interest LevelReading LevelReading A-ZATOSWord Count
Grades 4 - 8Grade 6n/a5.294775
Milo must choose between risking his life to save both the human and magical universes—or to live and save only his own—in the explosive and fast-paced follow-up to the first novel in the Nightsiders series, which Kirkus Reviews called “the perfect mix of science fiction and magic” in a starred review.

After joining forces with the magical Nightsiders and surviving a trip to the enemy Bugs’ Hive ship, Milo Silk still has a lot to fear.

The Huntsman has pledged a revenge worse than death on Milo, a group of nefarious fairies are bent on taking back Earth, and zombie-like holo-men are trapping humans for the Bugs to take. Even more unsettling is that the Witch of the World has disappeared and a mysterious boy is haunting Milo’s dreams in her stead.

But none of these threats compare to what may happen to the world if the humans and the Nightsiders don’t unite to fight for each other.
Paperback, 464 pages
Published on September 12, 2017 by Simon & Schuster Books for Young Readers
ISBN-10: 1481415794
ISBN-13: 9781481415798
1 Book Review
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  • sophia_g
    sophia_gFriday, March 13, 2020 at 12:52 pm55 stars
    The Vault of Shadows, the second book of The Nightsiders series, takes place a little after Milo and his friends steal the Heart of Darkness (the only gateway left for the Nightsiders, creatures of mystery and fantasy trying to get back home). However, the alien bugs are brooding and it's up to Milo and his friend are set in for an adventure. The reason I connected to this book is because of it's cool end of the world apocalypse theme. The pacing is wonderful, the character dynamics are great and the story and plot itself if breathtaking, that's why this review is 5 stars. So I would absolutely recommend this book to you after you read the first one (don't make the mistake that I did. I learned that lesson the hard way).